Mat



FIG. 1 is a perspective view of a mat showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is an enlarged view of the circled region 8 in FIG. 1;

FIG. 9 is an enlarged view of the circled region 9 in FIG. 6;

FIG. 10 is a sectional view taken along line 10-10 in FIG. 9;

FIG. 11 is a sectional view taken along line 11-11 in FIG. 9;

FIG. 12 is another perspective view thereof; and,

FIG. 13 is an enlarged view of the circled region 13 in FIG. 12.

CLAIM The ornamental design for a mat, as shown and described.